Baby Sweatshirts – Cosy Fleece Sweatshirts for Babies & Infants

No Hood for SafetySoft Cotton FleeceSizes NB–18M

Baby sweatshirts and crewneck fleece for infants from newborn through 18 months. No hoods: infant sleep safety guidelines recommend against hooded garments for sleeping babies. Soft 80/20 cotton fleece, machine washable.

80/20 Cotton Fleece Hood-Free for Safety Machine Washable 100-Day Guarantee
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Safe and Warm for Infants

Baby Sweatshirts Without Hoods for Infants

NB–18M Full Infant Size Range
80/20 Cotton to Polyester Blend
Pre-Shrunk Holds Size After Washing

Baby sweatshirts are the practical mid-layer for infants from newborn through 18 months. Unlike a jacket, a sweatshirt is light enough for indoor wear and warm enough for a cool morning walk without overheating. This collection uses an 80/20 cotton-to-polyester fleece blend, pre-shrunk to hold its size through repeated washing. All styles are hood-free, in line with infant sleep safety guidelines that recommend against hooded garments during and around sleep.

Baby Sweatshirt Styles: Crewneck Pullover and Zip Fleece

Two styles are available in this range. Crewneck pullover sweatshirts go on over the head and are simpler in construction, with no zip to catch or irritate skin. Zip-up sweatshirts open completely at the front, making them easier to put on and take off a wriggly or very young infant without forcing the garment over their head. Both styles use the same 80/20 cotton-to-polyester fleece construction, are available in solid colours and simple print designs, and come in the full size range from newborn through 18M.

Sizing Baby Sweatshirts: NB Through 18M

Baby sweatshirt sizing follows standard infant age and weight bands: NB fits newborns up to approximately 9 lbs, 0-3M fits 9 to 12 lbs, 3-6M fits 12 to 16 lbs, 6-12M fits 16 to 22 lbs, and 12-18M fits 22 to 27 lbs. For sweatshirts, sizing up is the safer choice if your baby is between sizes or near the top of a weight range. Sweatshirts are worn over a bodysuit or onesie, so a slightly roomier fit allows easier layering and extends how long each size is usable. Chest and body length measurements are listed on each product page.

For a guide to how many baby clothes a newborn needs and how each category fits into the first year, read how many baby clothes a newborn needs.

Why Baby Sweatshirts in This Range Skip the Hood

Infant sleep safety organisations recommend against hooded garments for babies during and around sleep. Hoods can shift position during sleep and create a risk of covering the face. All sweatshirts in this collection are hood-free for this reason. A crewneck or zip neck provides the same warmth function without the hood. For outdoor warmth requiring head coverage, a structured infant jacket with a detachable or fold-back hood is a more appropriate choice. These sweatshirts are designed for daily indoor and mild outdoor wear where a hood is not needed.

Cotton Fleece Baby Sweatshirts: Fabric and Care

Baby sweatshirts in this collection use an 80/20 cotton-to-polyester fleece blend. The cotton content provides softness against infant skin; the polyester adds durability and shape retention that a pure cotton sweatshirt lacks through repeated washing. The interior fleece surface is brushed, which raises the fibres to create a warmer feel without adding significant weight. All pieces are pre-shrunk. Machine wash cold on a gentle cycle, tumble dry on low. Washing inside out extends colour life over the season.

For the full infant range, browse baby clothing, or baby onesies for everyday cotton basics from NB through 18M.

Buyer's Guide

How to Choose a Baby Sweatshirt

Why No Hood on Infant Sweatshirts

Infant sleep safety guidelines from major paediatric organisations advise against hooded garments for sleeping infants. Hoods can shift to cover the face during sleep. Baby sweatshirts and crewneck fleece are the appropriate layering option — they provide warmth without the hood risk.

Sizing: NB to 18M

Baby sweatshirts run in NB (up to 8 lbs), 0-3M, 3-6M, 6-12M, and 12-18M. Sweatshirts are worn over a onesie or tee as a layer, so they are typically sized to allow a base layer underneath. If your baby is at the top of a size range, size up to ensure the sweatshirt fits over a onesie comfortably.

Cotton Fleece vs Cotton Jersey

Cotton fleece has a brushed interior that traps more warmth than standard cotton jersey. A baby sweatshirt in cotton fleece is appropriate for indoor use in cool environments, outdoor use in autumn, and as a mid-layer under a jacket in winter. Cotton jersey tees and onesies are worn underneath for warmth layering.

Care: Machine Wash Cold

Machine wash cold with like colours. Tumble dry low. Cotton fleece can shrink slightly at high heat — always use low settings. The snap closures on fleece bodysuits should be fastened before washing to avoid snagging other items in the load.

Why These Work for Infants

What Makes These Baby Sweatshirts Different

No Hood — Designed for Infant Safety

Hoods on infant garments present a safety risk during sleep. Every sweatshirt in this range is hood-free. Parents and carers can use these as sleep layers without concerns about hood displacement.

Brushed Cotton Fleece Interior

The brushed fleece interior creates a soft, warm surface against infant skin. Softer than a standard jersey sweatshirt and warmer without adding bulk.

Snap Closure on Fleece Bodysuits

Fleece one-pieces include snap closures at the bottom that allow diaper access without removing the whole garment. This is the correct construction for an infant-wear fleece layer.

Machine Washable

Infant clothing gets washed frequently. These sweatshirts machine wash cold and tumble dry low without significant shrinkage or pilling.

Cotton Fabric — Suitable for Sensitive Skin

Cotton fleece breathes better than polyester fleece. For infants with sensitive skin or eczema, cotton-based fleece reduces heat trapping and does not irritate the skin the way synthetic fleece can.

100-Day Guarantee

All baby sweatshirts in this range are covered by our 100-day guarantee. If the garment does not hold up to normal infant use and washing, we replace it or refund it.

What Parents Say

Baby Sweatshirt Reviews

4.9 / 5 · 286 Reviews
"Finally found a baby sweatshirt without a hood. My paediatrician specifically told us to avoid hoods during sleep and these are perfect — warm, soft, and the snap closure makes diaper changes easy."
Emma L.
March 2025
Verified
"Bought these for my newborn for the winter. The fleece is genuinely warm without being bulky. The sizing is accurate — the 0-3M fits comfortably over a short sleeve onesie."
Chris P.
January 2025
Verified
"The cotton fleece is much softer than the polyester baby sweatshirts I have seen. My daughter has sensitive skin and these have caused zero issues. Machine washing has not changed the softness."
Anna K.
February 2025
Verified

Frequently Asked Questions

Common Questions About Baby Sweatshirts