Best adjustable beds UK 2026: what size to order, whether your mattress will bend, NHS loans and the VAT-free rules

Adjustable beds are sold in the same sizes as any UK bed, and that is where the mistakes start. Which?'s size guide of 8 May 2026 gives the standard ones: a small single is 75 × 190 cm (2 ft 6 in by 6 ft 3 in), a single 90 × 190, a double 135 × 190, a king 150 × 200 (5 ft by 6 ft 6 in) and a super king 180 × 200. Add the 15 cm that Which? asks for above the tallest user and the two UK lengths set a ceiling: a 190 cm bed suits people up to about 5 ft 9 in, and a 200 cm bed up to about 6 ft 1 in. Above that, no standard UK size is long enough.

For a couple the trap is the width. A dual adjustable bed is two beds side by side, not one 150 cm bed that folds in one piece. Each base moves on its own, so one person can sit up to read while the other sleeps flat, and that is also why the double or king mattress at home does not come along. The dual bed in this guide is 150 × 190, which in the UK is two small singles: two small single mattresses and two small single fitted sheets. A UK king set is 150 × 200, 10 cm too long for it.

Latex, memory foam and profiled foam bend; a continuous coil does not; and pocket sprung only works if its maker certifies it for adjustable beds. That is how OCU, the Spanish consumers' association, puts it in its guide of 13 January 2026, which also sets the useful depth at 18 to 20 cm: below that you feel the base, above it the mattress bends worse. Which?'s guide is blunter about the shortcut: putting a normal mattress on an adjustable bed isn't advisable, because the mattress has to work with the movement of the bed. It is the check to make before looking at prices, because it changes what the bed costs.

That is where the order of this guide comes from. If the mattress at home has springs, the purchase is two things, not one, and a closed pack like the Ergotop pack with its own mattress view › works out better than a base plus a new mattress. If the mattress already bends, the opposite applies: all you need is the motor, and the ProCare base view › saves throwing out a mattress that is fine. The expensive mistake is buying the base first and finding out afterwards that the mattress will not follow.

Yes, as a loan, when there is an assessed need. Age UK's factsheet on disability equipment of March 2026 describes how it works in England: local equipment stores are funded and run jointly by the NHS and the local authority, equipment is loaned for as long as you need it, and complex items that need servicing, such as mobile hoists and electric beds, are always delivered and fitted, with the council keeping responsibility for them. The NHS guide to equipment says the same from the other side: equipment and small adaptations are provided free if you are assessed as needing them.

The door is an assessment, not a shop. It starts with a needs assessment from the council's adult social care, which may involve an occupational therapist, or with a request from the GP, the district nurse or the community physiotherapist, who can ask the store for items that meet a health need. What it covers is the need, not the comfort: as Which? puts it, funding after an assessment is likely to cover only current needs and no unnecessary features.

The two features HMRC names are on two beds of this list: the Ergotop pack view › comes with side rails and the Ferlex bed view › rises from 43 to 83 cm. That does not make either of them zero-rated by itself: the decision is the seller's, made with the buyer's declaration, and a general marketplace seller may simply not offer it. We suggest asking for the declaration form in writing before ordering; if the seller does not offer one, the price on the screen includes VAT.

The fullest maker's sheet we found declares 100 kg for singles and double that for 150 cm beds, and it does so on its own website, not in its listing. It belongs to the Ventadecolchones Adaptator, a Spanish-made bed. It is a lower ceiling than people assume, and it has to be read counting whoever sits on the edge to help: two people leaning on the same side of a base that moves are more load than one lying in the middle. Of the 38 adjustable bed and base listings we counted on the European catalogue on 6 September 2026, only one states a weight limit, and it declares 90 kg.

And the third figure is the one that sounds best: five sections. Of the 12 listings that give a number, eleven say five and one says four, and it sounds like five parts moving. The same maker's sheet describes them one by one: the upper section split in two to raise head and trunk, a lumbar section that is fixed, with double slats and firmness sliders, and the lower section split in two from hip to knee and knee to feet. Five sections, four that move and one that does not, driven by two motors. What is worth comparing is the motors and which zones they move.

A rise-and-fall frame does not lift the back: it lifts the whole bed. It is for two things that have nothing to do with each other. Low, so the person using it can sit on the edge with feet on the floor and stand up unaided. High, so whoever helps changes sheets, washes or dresses a wound at waist height instead of bent over a 55 cm bed. Eight of the 38 listings counted mention it, and only three write between which heights it moves. In the UK it is also the second of the two features HMRC names for a bed designed for disabled people.

An adjustable bed is not placed like the old one. There is a motor underneath, so the legs cannot be cut down at will, and it cannot go against the wall if someone is going to help from both sides. And unlike a slatted base, it needs maintenance, although almost nobody mentions it at the time of purchase.