A fitted sheet should have one job – stay on the mattress – and yet half the fitted sheets sold fail it by 2am, pinging off a corner and bunching under your back. This guide covers what actually separates a fitted sheet that fits from one that fights you, and where our 4-piece silk-blend set lands.
Buying sheets piece by piece is how you end up with a fitted sheet that doesn’t match anything else in the closet. Our 4-Piece Bed Sheet Set solves that by shipping a flat sheet, fitted sheet, and two pillowcases together, sized and colored to actually match.

What’s in the Set
- Flat sheet + fitted sheet + 2 pillowcases – everything needed for one bed in one order
- Full range of sizes – twin through king, each set matched to the correct fitted sheet depth
- Eight colorways – from sapphire blue to champagne, wine red to silver gray
The Honest Part on Material
We want to be direct about this one: despite “Mulberry” in the collection name, this set’s fabric is a chemical-fiber (microfiber-style) weave, not genuine mulberry silk. It’s soft, smooth-finished, and holds color well – but it isn’t silk, and we’d rather you know that before you buy than find out after. If what you actually want is real silk against your skin, pair this set with our 100% Mulberry Silk Pillowcase for the surface that matters most – your face and hair only touch the pillowcase, so that’s the piece worth upgrading to real silk first.

Who This Is For
If you want a complete, coordinated bedding refresh at a low price point, this covers it in one order. If genuine silk fiber is the priority, use this for the flat sheet and fitted sheet, and put your budget toward a real silk pillowcase instead.
See all sizes and colors on the product page.
What makes a fitted sheet actually fit
Pocket depth is the unglamorous answer. Modern mattresses run 25-35cm thick, and a fitted sheet cut for an old 20cm mattress will never stay put no matter how you wrestle it. Deep pockets plus properly elasticated corners keep the sheet gripping through a night of turning. Fabric is the second half: a silk-blend surface stays cooler and smoother than standard cotton, which your skin notices for the eight hours it spends against the largest surface you own. The 4-piece format – fitted sheet, flat sheet, two pillowcases – just means the whole bed upgrades at once and everything matches.
Honest bedding advice
Good sheets make a decent bed noticeably better; they do not rescue a collapsed mattress, and we will not pretend otherwise. Measure your mattress depth before ordering any fitted sheet, wash cold and gentle, and rotate two sets if you can – both last years longer. The Sleep Foundation’s bedroom environment overview puts bedding alongside light, noise and temperature as the levers that genuinely move sleep quality.