Fitted Sheets

Measure the width of your mattress to confirm your bed size: 90cm is single, 120cm is small double (4ft), 135cm is double, 150cm is king, 180cm is super king. For fitted sheets, also measure the total depth of your mattress including any topper or protector - this determines whether you need a standard 30cm, extra deep 38cm, or ultra deep 46cm sheet. Belledorm also stocks specialist sizes including bunk bed, long single, IKEA Euro king, emperor, and large emperor.

The best fabric depends on how you sleep. Polycotton (200 thread count) is lightweight, crease-resistant, and quick to dry - practical for everyday use. Cotton sateen at 300 or 600 thread count feels smoother and has a slight sheen. Egyptian cotton uses longer-staple fibres for a more consistent surface that softens with washing and resists pilling. Bamboo is naturally moisture-wicking and suits warm sleepers. Brushed cotton flannelette traps warmth for winter. Jersey cotton has a stretchy, T-shirt-soft feel.

A fitted sheet wraps around the mattress and is held in place by elasticated corners. It stays put overnight and is the standard base layer for most beds. A flat sheet is a single, unhemmed piece of fabric that sits between you and the duvet. It adds a layer of temperature regulation, protects the duvet cover from body oils and perspiration, and gives the bed a traditional, hotel-style finish. Many people use both together; some prefer just a fitted sheet and duvet.

The most common reason a fitted sheet pulls free is that the depth is wrong for the mattress. Measure the total depth of your mattress including any topper and choose a sheet with a box depth that matches - a 30cm sheet on a 28cm mattress will have very little fabric to tuck under and will slip off. Belledorm fitted sheets have fully elasticated edges (not just corner elastic), which keeps the sheet anchored more securely around all four sides of the mattress.

Thread count measures the number of threads woven into one square inch of fabric. A 200 thread count polycotton or cotton percale has a crisp, cool feel suited to warm sleepers and everyday use. A 400 thread count cotton sateen is noticeably smoother. At 600 thread count and above, the fabric becomes denser and silkier, with a heavier drape. Above 1000 thread count, returns diminish - the weave type and fibre quality matter more than the number itself. Belledorm offers sheets from 200 to 1500 thread count across multiple fabric types.

Most sleep hygiene guidance recommends washing sheets every one to two weeks. During warmer months or if you perspire more at night, weekly washing is better for freshness and skin comfort. Belledorm cotton and polycotton sheets can be machine washed at 40°C on a standard cycle. Egyptian cotton and higher thread count sheets benefit from being removed from the dryer slightly damp and smoothed flat to reduce creasing.

Yes. Belledorm's sheet fabrics are available in matching duvet covers and pillowcases across most ranges, in the same thread count and colourway. This makes it straightforward to coordinate your entire bed from one fabric family. Bedding bundles are also available, which bring together a fitted sheet, duvet cover, and pillowcases in one order with a saving built in.

Yes, UK double bed sheet dimensions are standardised: fitted sheets are 135cm x 190cm, flat sheets are 230cm x 275cm, and duvet covers are 200cm x 200cm. Belledorm's double range follows these standard UK dimensions throughout.

The one variable is fitted sheet depth, this is not standardised and varies by product and brand. Always check the box depth (30cm, 38cm, or 46cm) against your mattress measurement before purchasing. One common point of confusion is the duvet cover: a double duvet cover (200cm x 200cm) is square, not rectangular, this is correct and standard across the UK industry. If you are buying bedding as a gift or for a property you cannot measure, standard UK double dimensions apply to the overwhelming majority of double beds manufactured since 2000.

It depends on your mattress depth. Belledorm fitted sheets come in standard 30cm, extra deep 38cm, and ultra deep 46cm options. Measure your mattress before buying - if you use a mattress topper, add that measurement too. Most standard UK mattresses suit a 30cm sheet, but if corners keep popping off, go up to 38cm.

Percale has a crisp, cool feel, ideal if you sleep warm or love that fresh hotel sensation. Sateen has a smooth, silky finish that feels more luxurious but retains slightly more warmth. If you are unsure, percale is the safer all-round choice for most sleepers.

Not necessarily. A well-made 200 thread count in pure cotton will often outperform a cheap 800 thread count in lower quality fabric. What matters more is the fibre quality and weave construction. Belledorm's range runs from 200TC up to 1500TC, so there is something for every preference and budget.

The range covers everything from bunk bed and narrow single through to emperor and large emperor, including small double (4ft), standard double, king, super king, and IKEA Euro King. Special sizes are also available for non-standard mattresses including 6'6'' beds and super single.

Go for a percale weave in 100% cotton, it is breathable and gets crisper with every wash. The 200TC or 400TC Egyptian cotton options are particularly popular with warm sleepers. Avoid sateen or very high thread count options if you tend to overheat, as the denser weave retains more warmth.

Yes. The extra deep 38cm and ultra deep 46cm options are specifically designed for thicker setups. If you have a standard mattress plus a topper, the 38cm extra deep should cover most combinations. For particularly thick setups, the 46cm ultra deep is the safest choice.

Egyptian cotton has longer fibres, which means a softer, smoother feel that actually improves with washing rather than deteriorating over time. It is also more durable. Standard cotton is perfectly good quality for everyday use and comes at a lower price point, Belledorm's 200TC 100% cotton percale is a great example of quality without the premium price tag.

Yes. Belledorm stocks fitted sheets for a wide range of special sizes including narrow single, long single, long narrow single, bunk bed, 6'6'' beds, super single, and IKEA Euro King, alongside all standard UK sizes.

Yes, most Belledorm fitted sheets have a sample option available so you can feel the fabric quality before committing to a full set. Look for the "Sample Available" label on individual product listings throughout the range.

For winter, brushed cotton (flannelette) is the go-to choice, it has a warm, soft feel that is noticeably cosier on cold nights. For summer, a lightweight 200TC percale in pure cotton keeps things cool and breathable. You can filter by season directly on the fitted sheets page to narrow down your options quickly.