Sleep Philosophy Cozy Flannel Sheets — 100% Cotton Full Sheet Set, 4-Piece, Brushed for Warmth & Deep-Pocket Fit

These Sleep Philosophy Cozy Flannel Sheets are a 100% cotton, ultra-soft 4-piece full-size sheet set designed to keep you warm and comfortable on cold nights.

Soft-woven flannel brushed on one side creates a plush, insulating surface that traps warmth without feeling heavy. The set is OEKO-TEX certified, machine washable, and available in a variety of prints to refresh bedroom style while prioritizing safe, chemical-free textiles. Built-in elastic and a deep pocket on the fitted sheet make setup quick and secure for mattresses up to 12 inches deep.

How do these sheets feel and perform on chilly evenings?

The brushed cotton flannel delivers a soft, dense nap that increases perceived warmth and provides a cozy, tactile surface against skin. Because the fibers are naturally breathable, you get warmth without an overly sweaty sensation for many sleepers. The fabric finish is intentionally brushed to create loft while remaining lightweight enough for layered bedding.

• 100% cotton flannel with brushed nap for softness and insulation
• Warmth without heavy weight—works with blankets or comforters
• Natural breathability of cotton reduces overheating risk

What is included and will the fitted sheet fit my mattress?

This full-size 4-piece set includes one flat sheet, one fitted sheet and two standard pillowcases (twin sets include one pillowcase). The fitted sheet has a 12-inch deep pocket with full elastic around the perimeter to hold it firmly in place on many mattress profiles. Exact dimensions are printed to help confirm fit before purchase.

• Flat sheet: 81" W x 96" L
• Fitted sheet: 54" W x 75" L + 12" depth (elastic all around)
• Pillowcases: 20" W x 30" L (two included for full set)

How should I launder and care for these flannel sheets?

These sheets are machine washable for low-effort care. Wash cold and tumble dry low; avoid bleach. A brief shedding period is normal after manufacturing brush processes — adding a half cup of white vinegar to the wash can reduce initial lint, and shedding typically subsides after a few washes.

• Machine wash cold, tumble dry low
• Avoid bleach; use mild detergent
• Add 1/2 cup vinegar to first wash to reduce lint shedding

Are these sheets made with safe materials?

Yes—the fabric carries OEKO-TEX certification, which indicates testing for harmful substances and a commitment to safer textile production standards. That certification applies to the finished textile, providing added assurance for anyone sensitive to chemicals in fabrics. The sheets are crafted from natural cotton fibers rather than synthetic blends.

• OEKO-TEX certified finished fabric
• 100% natural cotton fiber composition
• No synthetic thermal additives—warmth comes from brushed construction

Who is this for? Sleep Philosophy Cozy Flannel Sheets suit anyone seeking a warm, natural-fiber option for cooler seasons: people who prefer a soft, brushed hand feel, shoppers who value OEKO-TEX-certified textiles, and those who want easy-care bedding with a snug fitted sheet for mattresses up to 12" deep. They’re also a good choice if you want to add seasonal prints to your bedroom without sacrificing practical washability.