Waterproof Fitted Sheet | King Single | Milk
Loved by
1000+ families
🛏️ Description
Our Waterproof Fitted Sheet protects your mattress from spills, leaks, sweat and overnight accidents, without sacrificing comfort. Quiet, breathable and beautifully made, it’s everyday bedding with built-in peace of mind.
Key Features & Benefits
- Built-in waterproof protection - A discreet waterproof lining shields your mattress from spills, leaks and unexpected nighttime accidents
- GOTS-certified 100% organic cotton - Made with an organic cotton outer for a comfortable, breathable, skin-friendly sleep surface
- OEKO-TEX® certified & skin-safe - Free from harmful substances and gentle on sensitive skin
- Quiet, breathable TPU waterproof layer - Blocks moisture without crinkling, noise or plastic feel
- Secure, extra elastic non-slip corners - Designed to keep the sheet firmly in place through overnight movement
- Labelled long & short sides - Makes bed-making quicker and easier (especially for tired parents or busy mornings)
- Generous 50cm deep edges - Designed to fit deeper mattresses securely and reduce the chance of the sheet riding up overnight
- Soft & silent sleep surface - Feels just like regular bedding, only better
- Machine washable & dryer friendly - Designed for easy clean-ups and repeat washes
Every Milk & Bed product is made to last. Designed with intention, comfort, and durability at its core. We focus on how bedding feels, performs, and supports better sleep, night after night.
💙 Built Better
Our materials are carefully chosen to be gentle on skin, breathable, and safe for everyday use, without compromising on protection.
What we're made from:
✓ OEKO-TEX® certified materials, meaning zero harmful substances - safer for your family and kinder to the environment
✓ Natural fibres throughout, for softness and breathability where it matters most
✓ 100% GOTS-approved organic cotton on the surface
✓ A breathable bamboo core for airflow, comfort and it's moisture-wicking properties
✓ A soft, chemical-free TPU waterproof layer that protects without crinkle or stiffness
It’s the combined balance of comfort and protection, designed for the mess, but made for sleep.
Product Features
All-in-one waterproof protection, no separate mattress protector required.
Built from three layers bonded into one: 100% GOTS-certified organic cotton surface, bamboo fabric core that absorbs liquid before it spreads, and a TPU waterproof lining that stops anything reaching your mattress.
OEKO-TEX certified. No PVC. No PFAS. No toxic materials. Safe for newborn skin.
Extra-thick elastic edges and a centre securing elastic keep the sheet snug and slip-free all night. Machine washable and dryer friendly.
Care Instructions
Your Milk&Bed sheet is built to handle the mess and with a little care it'll keep performing wash after wash.
Machine wash on a gentle cycle in cold or warm water (below 40°C). Use a mild detergent. Wash with like colours. Line dry in the shade where possible. If tumble drying, use low heat only.
Avoid bleach, fabric softener and high heat these break down the TPU waterproof lining over time.
Size Guide
Quilt cover
- Single: L 210cm x W 140cm
- King Single: L 210cm x 180cm
- Double: L 210cm x W 180cm
- Queen: L 210cm x W 210cm
- King: L 245cm x W 210cm
- Super King: L 240cm x W 270cm
Fitted sheet
- Bassinet: L 81cm x W 41cm x D 12cm
- Cot: L 132cm x W 71cm x D 22cm
- Single: L 190cm x W 93cm x D 50cm
- Caravan Bunk: L190 X 78cm X D 25cm
- King Single: L 203cm x W 107cm x D 40cm
- Double: L 203cm x W 140cm x D 40cm
- Queen: L 203cm x W 152cm x D 50cm
- King: L 203cm x W 180cm x D 50cm
- Super King: L 203cm x W 203cm x D 50cm
Pillowcases
- Standard: L 75cm x W 50cm
FAQ
Is the waterproof layer breathable?
Yes! TPU is designed to allow airflow while blocking liquid. It's flexible, silent and doesn't trap heat like traditional plastic protectors.
Will I be able to feel or hear the waterproofing?
No. The TPU lining is bonded inside the sheet. There's no crinkle, no rustling and no stiff layer, it feels like a normal cotton sheet.
How long will the waterproofing last?
With proper care (no high heat, no bleach, no fabric softener) your waterproof layer will last wash after wash. Built for busy families and real-life mess.
Is it safe for newborn skin?
Yes. The surface is 100% GOTS-certified organic cotton and the entire sheet is OEKO-TEX certified meaning zero harmful substances throughout.
Can I use this instead of a mattress protector?
Absolutely! That's exactly the point. Milk&Bed has waterproofing built directly into the sheet. No separate protector needed.
What is the return policy?
find our returns/exchanges policy here
When will I get my order?
We know how exciting it is to be waiting for new bedding and we’re just as excited to get it to you.
Orders are packed and dispatched as quickly as possible, and once your order has been shipped, you’ll receive a confirmation email with tracking details so you can follow it every step of the way.
Delivery timeframes may vary depending on your location and shipping method selected at checkout, but we always do our best to ensure your order arrives safely and promptly.
Visit our shipping policy here for more info