Corners gradually lift under movement and tension.

StillNest
The bed you made. Still made by morning.
A discreet four-corner locking system that keeps fitted sheets smooth, secure, and exactly where they belong—without straps, metal clips, or nightly re-tucking.
A small frustration, every single night
Loose sheets do more than look messy. They interrupt comfort.
One lifted corner becomes fabric beneath your back, another tug across the mattress, and another bed to remake in the morning.
Fabric bunches into folds where you sleep.
The bed needs to be stretched and tucked all over again.
Designed around the point of failure
Security where your sheet needs it most.
Instead of running a web of elastic beneath the mattress, SheetLock™ supports each high-tension corner independently. The result is a cleaner setup, a firmer hold, and easier sheet changes.
Independent corner holdEach lock works on its own, so the system adapts naturally to your mattress.
Smooth, fabric-conscious gripNo exposed metal teeth or sharp clips pressed against your linens.
Made for everyday useA quick, tool-free setup designed for routine sheet changes.
“The best kind of comfort is the kind you stop having to think about.”StillNest™
Three steps. Four corners. One smoother night.
Simple enough to become invisible.
Position
Place one holder at each mattress corner.
Pull
Fit your sheet normally and leave enough fabric beneath the edge.
Lock
Close each holder, smooth the surface, and leave the corners alone.
One set. Nearly any bed.
Made to fit the mattress you already love.
Because every corner is secured independently, SheetLock™ is not limited by one fixed width or length.
Mattress sizes
Designed for real bedrooms
A cleaner way to keep sheets secure
Everything you need. Nothing underneath the bed.
| Feature | SheetLock™ | Traditional straps |
|---|---|---|
| No crawling beneath the mattress | ✓ | — |
| No exposed metal teeth | ✓ | Varies |
| Independent corner adjustment | ✓ | — |
| Quick removal for sheet changes | ✓ | Varies |
Comfort without another chore
Wake up to a bed that still feels made.
Less pulling, smoothing, and re-tucking. Just a calmer bed at night and one less reset in the morning.
The details
Questions, answered.
Everything you need to know before choosing your set.
Will SheetLock™ fit my mattress?
Each holder is installed independently, so there is no fixed mattress width or length. It is designed for common mattress sizes from Twin through California King.
Does it work with deep-pocket sheets?
It works with most standard and deep-pocket fitted sheets. Leave enough fabric beneath the mattress edge for the holder to close without over-stretching the material.
Can I use it on an adjustable bed?
Yes, on many adjustable mattresses. Position every holder so it remains clear of the frame and all moving components.
Will it damage my sheets?
The holders use smooth contact surfaces rather than exposed metal teeth. Avoid excessive tension and do not use them on already damaged or extremely delicate fabric.
How many holders are included?
Each set includes four holders—one for every corner of one mattress.
How difficult is installation?
No tools are required. Position one holder at each corner, fit the sheet, close the holders, and smooth the surface.
Make the bed once
Secure the sheets. Settle into sleep.
Four corners are all that stand between a neatly made bed and another morning reset.