Dreamland 6988 Sleepwell Mattress Cover, Super Kingsize

Product information

Keep cosy all night long whatever the weather with the Sleepwell by Dreamland mattress cover.

This heated super kingsize mattress cover hosts clever new Intelliheat technology and takes just 5 minutes to heat up, so it is nice and warm by the time you hop into bed. It offers 6 heat settings, and a timer option that allows you to set it to switch off automatically after 1 or 9 hours.

Ultra-slim wires ensure ultimate comfort as you enjoy the heated comfort of this mattress cover, and thanks to overheat safety protection you can enjoy a peaceful night’s sleep with no worries at all. Maintenance is easy, as this Dreamland mattress cover can be machine washed and tumble dried, and a low energy consumption ensures low running costs.

Let this Dreamland mattress cover calm you into a relaxing sleep, so you can make the most of your waking hours after a refreshing sleep!

Please note: Unfortunately, Dreamland advise against the use of electric blankets if you have a pacemaker fitted.

L200 x W180cm
Eligible for International Delivery
Heat settings Information Variable temperature for a variety of fabrics
100% polyester filling, 100% cotton cover
Model name / number
Super Kingsize
Mattress Cover
Washing Instructions
Machine washable at 40°C


Click & collect

Free from John Lewis or Waitrose shops for collection tomorrow from 2pm
365 participating John Lewis and Waitrose shops

Collect + from a local shop from Monday - postcode exclusions apply for Collect+ deliveries

5000+ participating Collect+ shops

Standard delivery in 5 working days


Named or Saturday UK delivery


Named day UK delivery pre-10.30am


International delivery not available

We want you to be happy with your purchase. If you're not, depending on the type of product, you can make free returns in the UK via John Lewis shops, Royal Mail, Collect+, or MyHermes. If you need to arrange collection of large or heavy items, call us on 03456 049 049. For international returns queries, call us on +44 1698 545 454. Find out more about returns.

You'll find returns information on your delivery note. Unless faulty, we'd like you to make your return within 90 days of purchase. Exceptions apply to certain products - find out more about our refund policy.


Find out more about returning products

Q & As

Rated 4.8 out of 5 by 47 reviewers.
Rated 5 out of 5 by Ah! Controllable heat while I snooze "Fitted" element of this product ensures no slipping and sliding, Individual controls are a boon. Heat settings can be as gentle as you wish or more than hot enough for most. The rapid heat setting is a lifesaver on a cold winter's night (not for all night use). All other heat settings can operate for either 1hour or all night, giving plenty of scope for each half of the bed. 3year warranty from John Lewis is an extra not available on a certain major online retailers site and is easily worth the slightly higher price especially as delivery is free. Highly recommended 03 March 2015
Rated 5 out of 5 by Toastie warm I thought long and hard to decide it was worth the extra cost for this Superking size electric blanket as it is not cheap, having read all the positive reviews we decided to take a chance. This was decidedly the best investment we have recently made, we are sleeping so much better, longer and it is such a pleasure knowing that after 5 minutes the bed will be toastie. The foot warming zone is a particular favourite as is the ability to have individually heated sides so you can find your own heat. 24 February 2015
Rated 5 out of 5 by no more Mrs Coldfeet wife loves it, no more bed socks, by the time teeth are cleaned bed's hot n cosy 05 February 2015
Rated 5 out of 5 by Perfect for cold nights Just returned from New Year in our holiday home which was not heated for weeks until we go there and is was -14 outside and snowing!!!! This blanket is a marvel heats up quickly has a 1 or 9 hour setting and you can both have it set as you wish. The terror of getting into a freezing bed before we got this has changed to the pleasure of a warm bed - might have to get one for home as well. 10 January 2015
Rated 5 out of 5 by Great product Heats up quickly, very helpful that there are 2 controls one for each side of the bed. 17 December 2014
Rated 5 out of 5 by Bliss! This seemed like an extravagant purchase but it is wonderful - worth every penny. The superkingsize fits easily over a very large/deep mattress. The fast warm-up means no waiting around if you come home late. The night sensor which (noiselessly) adjusts the temperature to suit you as the night progresses is a marvel, though even the bottom setting is warm. All in all, this is making winter bearable! 16 December 2014
Rated 5 out of 5 by Can't Live Without It Heaven - an excellent electric blanket and even better because it is a mattress protector. You won't find a better one. 09 December 2014
Rated 4 out of 5 by Comfortable and dreamy We have a very deep Visprung mattress and this fitted perfectly, it add a nice comfort layer and warms the bed perfectly with easy to use dual controls. I have had it set on number 5 and it does not get very hot, just warm therefore if you are looking for a heated blanket which gets very warm I'm not sure this is for you. 09 December 2014
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Additional services

  • 3 year guarantee included

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