Sleepmotion 400i Adjustable Platform Bed Frame Rated 4/5 based on 48 customer reviews
Sleepmotion 400i Adjustable Platform Bed Frame

Sleepmotion 400i Adjustable Platform Bed Frame

Questions: Read 18 Questions

What Makes The Sleepmotion 400i Adjustable Platform Bed Frame Great?

1-year guarantee

A 1 year guarantee is expected and standard for the industry. If anything goes wrong with your product within that period you are able to get help and support and ensure that you are not left out of pocket on any repair of replacement.

Sturdy metal legs and reinforced base

Weight limit: 355kg / 55 stone

Mattresses can vary in their weight, normally around 30-50kg. That leaves plenty of weight limitation in place for most people and should not cause any issues with the frame.

Sync cable - easy to sync the bed frame to the wireless remote

Images are a visual representation. There will be a slight gap between the base and mattress when not in use, this is normal.

Instructions download: Single | double/king | super king

3 adjustable areas: head, feet and lumbar

2 people required for assembly

Self assembly is required with this frame, however, the manufacturing quality and tolerances within should make for easy work.

Can be standalone or dropped into one of our selected bed frames

Mattress not included, view our range of compatible mattresses here

You require a certain type of mattress for adjustable bed bases, as such there is a slight limitation and restriction against suitable products, worry not however, the range is still vast enough for many competitive and well priced deals to help you find the right mattress.

Controlled via the Napp by Dreams app or wireless remote (included)

The new Napp by Dreams app has more features than ever, not only can you control your sleep, with health monitoring that can track your sleep cycle. You now get the ability to control the bed, being able to navigate up and down in line with your comfort preference.

Zero Gravity technology provides a weightless feeling and eases pressure points

The zero-gravity technology within this base supports a sleeping position that allows for neutral body posture  which was developed by NASA.  The position and technology combined helps provide a state of weightlessness. NASA to this day continues to place astronauts in this position prior to take-off, equalising their weight and easing the stress on their bodies prior to space launch.

2x massage units (back and feet)

One of the additional features of this base is it has further lumbar support with two relaxing units on the back and feet to massage the body.

Customer Reviews For The Sleepmotion 400i Adjustable Platform Bed Frame

Based on 48 reviews

Best sleep ever!

I am disabled and have severe arthritis finding getting out of bed particularly difficult. I also have to use 2 pillows under my knees to try to get comfortable in a conventional bed. I decided that it would be a huge benefit for me to have a bed which helps me sit up to help get out of bed and allow me to sleep without pillows under my knees. To say I'm delighted is a huge understatement! I have never had such a comfortable bed allowing me to have the most comfortable and most restful sleep ever. I can't reccomend this bed highly enough. If you have problems getting out of bed or have arthritis in your spine, hips and knees, or you spend a lot of your time in bed please get this bed. I can guarantee you won't be disappointed.


Dreams do come true.

Outstanding purchase, i struggle to get out of bed in the morning when i raise the bed its just like stepping out so simple ,and is superb to watch the tv ,with the bed sitting me up,there are times when i just want to lie a lot longer, and i put the massage on its so comforting.the mattress is soft to medium,what a brilliant sleep, you get what you pay for all is pure quality, my only regret is i wished i bought it a long time ago,but you cant turn the clock back.i am a very happy customer and a big thank you to dreams and to the lovely girl in dreams shop in Stirling that had the patience of a saint,to might shure she sold me the perfect bed for myself and my wife,well done.


Finally a good nights sleep

After struggling with getting a good night's sleep due to injuries i read about the sleepmotion range. After visiting dreams and discussing my needs with a salesperson and trialling the bed we decided to putchase the sleepmotion 400i. The company kept us up to date with emails regarding delivery, the guys that delivered and set up the bed were first class, quick curteous and professional. With a certain amount of trepidation we tried the bed on the first night and had the best night's sleep in absolute ages, and have continued to sleep completely comfortably since. Cannot fault the bed or the company in any respect, very highly recommended


Sleepmotion 400i

The bed looks very modern and sleek and you would not know it is an electric bed. Good range of movement and easy to operate. The 400i is the mid range option but does almost everything the more expensive 800i does. I also like that the legs are not on each corner ( just inside the frame which means there is no chance of stubbing you toes on them. Easy to hoover under the bed especially if you have the extra leg height fitted on delivery, which the brings the bed up to a more standard height. Remote sometimes takes a few presses to register. Extended warranty is good value giving 8 years cover on the electrical mechanisms and bed frame.



As we are retired now we decided due to health reasons to purchase an electric bed. In the shop we went for the 200i on the sales person recommendation. However upon checking the website decided to upgrade to the 400i this has the back and leg massager integrated, and so glad we did. My ife spent a lot of time standing in her job and this allowed her to have the bottom half raised to aleviate pressure on her legs. It was also ideal for her back . If you are considering a new bed i cannot recommed this bed more highly. PS i think the wife is superglued to the bed after a month.


Certainly a Dreams bed

I shopped around carefully before deciding on the Dreams Bed and I am absolutely delighted with my purchase. The Dreams bed has a solid construction, variable head, leg and lumber support positions and the remote control makes it so easy to adjust my Dreams bed into the most comfortable positions, also the Dreams bed has a very modern streamlined shape. I couldn't be more pleased with my choice of the Dreams bed and I recommend it to anyone who is looking for the most comfortable ,easily adjustable bed


Amazing functions, life changer!

Great purchase! We use 'Zero Gravity' mode (ZG) often, especially after I play sports and feel fatigued and achey. It feels amazing, like you are weightless and it's difficult not to drift off in that position which is meant to be the natural sleeping position. The massage function is quite good but I wouldn't say it's outstanding, although we haven't yet used it properly so it'd be unfair to review it negatively. All in all, a really good buy from Dreams with cover for £99.


Good Purchase

Overall I think this bed frame has been a good purchase for me. I have been wanting to have an adjustable bed for a while and this has been a good choice in terms of the number of positions you can have to get completely comfortable. I am not fully convinced by the massage function yet. It also comes with height extenders for the legs which is a great option if you would prefer the bed to sit a little bit higher than standard.


First time adjustable bed buyer

A little wary because first time buying an adjustable bed but so pleased we committed and the Sleepmotion 400i plus the mattress chosen is very comfortable. Especially useful when using the bed in the daytime for reading, using a tablet etc. I was able to reconfigure the old bed frame around the new bed and it's moving platform so looks good too. Easy to find a comfortable position with the memory functions. Very pleased.


Sleepmotion 400i

This bed is phenomenal. I can’t imagine sleeping flat anymore. The simple ability to raise your top half up to watch TV, work in bed, breastfeed with such ease is a Godsend. I bought a lot of items in my recent house move and this bed is by far my very best purchase. I have already made converts - my parents, aunties and Grandmother are planning to purchase this bed too. Hats off to Sleepmotion I’m with you for life.


Great bed shame about the service

The bed is fantastic no issues there but I asked for my bed to be disposed of and charged €30 to find they would only take the base. Had I have known this I would have asked the council to take away as they are cheaper and would have taken the mattress too. When I rang the Peterborough office to complain I was told "never mind!" and no email address to make a formal complaint.


First class all round

Excellent from initially ascertaining which type of bed we required. Due to covid, we could only do this online, but it was made very easy. First class customer service from the moment we put our order in. Regular updates. Delivery on time - Dreams could teach other companies out to provide excellent products and service, Highly recommend


Great features!

The features in the 400i bed frame provide great comfort due to the extra adjustable area for lumbar support. Being able to choose a bed frame that suits your own style to partner with the base, along with the addition of massage units, creates a real feel of luxury so you can properly relax in bed!


Life changing bed!

Can not fault this bed, head and legs come up high, brilliant for chronic conditions, massage points and the lumbar support is the best part, no more pain, easy to put together, wireless remote, good height can easily clean underneath, amazing for reflux as it goes up so high, great nights sleep :)


Best therapy for a good night's sleep

Really comfortable and helped with post surgery requirements for leg elevation. Simple to use controls with many adjustments making it easy to find a comfortable night's sleep and leg elevation during the daytime. Best thing we have purchased in a long time; should have done it sooner.


Is the firm mattress too firm ?

Bought for me when I have a bad back. Bought for my to daughter to use when she is home. Since purchase my daughter has been home and been using the bed. I chose the firm mattress in the shop, but my daughter feels this is too firm. I have not yet had the opportunity to sleep on it.


Very good price and mid-high range adjustable bed

I bought this just before the official launch as there was only the 200i and 900i. sleep motion then brought out 2 new intermediate models so perfect for choice and getting the best value for the essential options you need rather than paying for features you are not going to use.


Marriage saving bed

This bed is so easy to put together and is controllable by a remote or an app. App required for our setup which is two singles side by side! Add a tempur firm mattress and hit your partner’s no snore setting and your marriage is saved! Truly life changing!


An excellent purchase

This is a very heavy duty frame … has controls to raise the head and feet independently an anti snore mode. Zero gravity mode and a massage mode there is even a tv mode which puts you into the best position for watching tv Pleased with our purchase


So comfortable

Omg it's perfect don't think I'll ever get out of bed again, love the massage features and it's perfect for someone that's poorly and struggling with there back..wish I'd bought this month's ago..good value for money too..worth ever penny..


Best nights sleep

We bought this bed due to my wife having a bad back and me having asthma. I can honestly say it has had a massive positive impact on our sleeping and helped with our medical problems. I would recommend this to anyone. So easy to use too.


Love it, so comfortable.

Absolutely love this bed, so easy to use with the App. So comfortable. Easy to put together too. Probably would be more useful if it had electronic height adjustment too. 2 men that delivered were very helpful too.


Life changing

This bed has made a good nights sleep possible again. I suffer from chronic health conditions and struggled for years to be comfortable enough to sleep in a bed. I can't recommend this bed enough.


400i bed - excellent choice

Excellent purchase - I love the bed and particularly the three “preset” buttons on the remote control. I also like the massage vibration although apart from the lowest setting, it is very noisy


Great nights sleep

I suffer with copd,and osteoarthritis of the spine ,my bed has helped me no end i can adjust it to be able to breath better and be able to have a great night sleep ,which i havent had in years


Life changer

Fantastic. Made my lifestyle so much better. Being a senior citizen with health problems my life has been turned around. I can now sleep and relax in complete comfort. 5* for Dreams from me.


Incredible bed.

Such an incredible adjustable bed! Every feature imaginabhle. I soon get into my favoured position and sleep soundly for hours on end. No aches or pains, its wonderful.


Heavenly bed

This bed comes in two parts for easy delivery but it is simple to put together. Absolute heaven to sleep or sit up in, especially with the massage function


Best Comfort and Sleep

Absolutely fantastic, had the best nights rest since purchasing this. Works really well with a tempur mattress. Fast delivery and really efficient set up.



easy to use, helps breathing, supports painful areas of your body, helps you to get out of the bed by lifting your upper back. great great


Best nights sleep ever

This bed is fantastic, It cradles me in a comfortable position all night, yet during the day when flat it looks like a normal double bed,



I love this bed it has help improve my quality of sleep so much and is having a definite change to my health. Would highly recommend.



We bought this bed 3 weeks ago and we received on time. So far it's exceeded our expetactions.


My new bed!

It is really special and works exactly how it should. It has made a big difference to my life.


Needs to be easier to control height.

Adjustable height but not right for me, high too high, low too low To get in and out of bed.


Slumber land at it's best.

Very comfortable and the different vibration motion settings really helpful with my back.


Sleep tight

Perfect position to watch TV , get breakfast in bed or simply sleep. Motor so quiet


Sleep motion 400i

Brilliant bed love it wish we went for the 800i but that will be our next purchase


Excellent product would recommend

Bought this to go into a bed frame we already had. Easy to assemble and use.


First class comfy bed

We are so pleased with this bed it’s the most comfortable bed I’ve ever had!


Sleepmotion 400i adjustable bed frame

changed my double bed for a single bed to give me more space in my bedroom.


Sleepmotion 400i is so comfortable

Fantastic service , very comfortable bed Excellent value for money too


New bed

Excellent! Just changed everything and now get a good nights sleep


High quality electric adjustable bed

Great adjustable bed. Easy assembly, robust build and high quality.



Amazing service and great quality product. My grandma loves it


Great product.

Simple to assemble. Does what it says on the tin. Great!


Good nights sleep

Excellent purchase, fantastic nights sleep so restful.

Questions and Answers About Sleepmotion 400i Adjustable Platform Bed Frame

do you charge to take away and recycle the old bed frame and mattress. do you deliver to Callington in Cornwall. We are looking at purchasing the 400i sleep motion

Answer: , Thank you for getting in touch with your question. We do have a convenient recycling service, the cost of which depends on the item you are wish to have recycled. You can find more information on this here: Yes, we delivery throughout the United Kingdom! Kind regards, Dreams

Good morning I have already purchased a dormeo mattress and I would love to have this bed.  Would I be able to use them together and how does the mattress manage to stay in place and not fall over the bottom edge.  

Answer: , You would need to speak to Dormeo directly so they can confirm if their mattress would be compatible. There is a mattress retainer bar that is fitted onto the end of the base to keep the mattress in place. Please see the assembly instructions on the product page for a better understanding of this. Many thanks Dreams

Good morning Is it possible to put 2 single Sleepmotion beds together to form 1 superking so that you can adjust the beds independently?

Answer: , Unfortunately there is no way to connect the beds, but you could stand them next to each other. However they would be 10cm shorter than a super king size. They would also need to be controlled with the individual remotes they come with, you wouldn't be able to use one remote for both beds. Many thanks Dreams

please can you explain the difference between back support (that the 400i has) to lumbar & back support (on the 800i) ?

Answer: , The 400i has back and lumbar support, these are the same on the 800i, the only difference is that the 800i also has head support which is a small section at the top of the bed which can tilt to change the angle of your head when you sleep and can help open airways while you sleep. Many thanks Dreams

I currently rly have an oak king size bed frame. I’m looking to buy the 400i to fit inside the base by taking the slats and mid beam out. Could you tell me the minimum length that would be required to fit the 400i into it inc. any allowances needed

Answer: , As the 400i would be King size itself, the Bed frame would need to be slightly bigger to account for allowances and movement of the adjustable base. Please contact a member of our sale team on 0800 652 5090 who will be able to assist you further. Many thanks, Dreams

Can you add bed rails to this bed 

Answer: , If you mean side rails we will be selling this bed as a drop in with a bedframe in the near future. If you mean patient helper rails, then unfortunately we cannot confirm this as we have not tested this with the bed. Many thanks Dreams

Are your sleep motion i400 bed frames compatible for a headboard? And if the frame only fits your mattresses shouldn’t that be a fixed price for a complete set option with discounts being given on whole unit prices or discounted assembly of the unit.

Answer: , We are currently designing a headboard for the 400i frame, we aim for this to be available in March 2021. I am sorry but unfortunately we do not have a discount available to purchase the frame with other items. Many thanks Dreams

do you take the old bed away

Answer: , Unfortunately due to the current lockdown we are unable to offer disposals at the moment. Once the lockdown restrictions have eased we will be able to review offering this service. Many thanks Dreams

what is the delivery time

Answer: , The delivery lead time for this bed is around 2 weeks. If you go through the checkout process, a delivery date will be offered before you make a payment. Many thanks Dreams

Hello how much does this weigh.? Super king. Removal men want to know..?

Answer: , The bed is delivered in two packages: Package 1: Weight: 53 kgs Measures: 21 x 109 x 186cm Package 2: Weight: 53 kgs Measures: 21 x 109 x 186cm Many thanks Dreams

Does the sleep motion 400i base come in a single base .

Answer: , Unfortunately the Single 400i is currently Out of Stock, but we are expecting it to be back shortly. Please check back soon. Many thanks, Dreams

How much space underneath?  And can you store stuff under there?

Answer: , The clearance is 22cm with the 9cm leg being used. We do not recommend any storage under the bed due to the moving parts. Many thanks Dreams

Hi, we have just purchased sleepmotion 400i for mom and she loves it but we cant seem to get the sleep gravity button working, it bleeps 3 times and nothing happens, any ideas? thankyou

Answer: , Please contact our customer services team on 0800 652 6750 for further assistance. Many thanks, Dreams

Is there a rail at the end of the bed to keep the mattress from slipping over the end

Answer: , The frame does have a retaining bar to keep the mattress in place. Many thanks Dreams

Hi, does the 400i have an adaption for a headboard yet? 

Answer: , Unfortunately the 400i does not yet have a matching headboard. Many thanks, Dreams

Are your mobility beds exempt from value Added Tax?

Answer: , Unfortunately our adjustable beds are not exempt from VAT. Many thanks Dreams

Hi can these beds be used if you have a pace maker

Answer: , You can use this bed with a pace maker. Kind regards, Dreams.

How heavy is this frame? Sleepmotion 400i Adjustable Bed Frame

Answer: , In total the frame weighs 78KG. Many thanks Dream

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