How to Keep a Hamster Warm in Winter (Plus Ferrets and Pet Birds)

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The first cold night of the season. The heat kicks on, you pull a blanket over your knees — and from the corner of the room, your hamster is burrowed so deep you can barely see a whisker.

Small pets and birds feel winter long before we do. Hamsters, ferrets, guinea pigs, rabbits and budgies have tiny bodies that lose heat fast, and they can't move somewhere warmer on their own. The way you set up their cage now — before the first hard freeze — decides whether they spend winter cozy and playful or cold and stressed. Here's how to keep a hamster warm in winter, plus easy cold-weather setups for ferrets and pet birds.

Step 1: Move the cage to the warmest, steadiest spot

Location matters more than any heater. The best winter spot is an interior wall in a room where your family spends time — stable temperature, gentle activity, and no drafts. Avoid:

• Windows and exterior doors (cold drafts and big temperature swings)
• Heating vents, radiators and fireplaces (hot, dry air)
• Kitchens — cooking fumes, especially from non-stick pans, are dangerous for birds
• Garages, basements and sunrooms, which can get far colder than the rest of the house

Step 2: Hamsters need deep bedding and a steady 65–75°F

Hamsters stay warm by burrowing. If their cage is shallow, they can't build a proper nest, and if the room drops too low they may become sluggish. A large wooden hamster habitat with a deep base holds several inches of paper bedding for real tunnels, and solid wood walls block drafts far better than a thin wire cage. The clear acrylic front means you still get to watch every snack-hoarding moment.

Step 3: Ferrets and small mammals love layers

Ferrets, chinchillas, rats and sugar gliders sleep up to 18 hours a day — and in winter, they want to do it somewhere snug. A multi-level rolling cage gives you room for hammocks, fleece sleep sacks and hideouts at different heights, so your pet can choose its own comfort zone. Lockable wheels let you roll the whole cage to a warmer room on the coldest nights without lifting a thing.

Step 4: Birds need warmth, light and room to fly

Pet birds are sensitive to drafts and to short winter days. Keep the cage near natural light but never pressed against a cold window, and cover it at night to hold in warmth and keep a regular sleep schedule. Because birds spend more time indoors in winter, a roomy flight cage matters — it gives budgies, canaries and finches space to stretch their wings and burn off energy.

Step 5: Small daily habits that make a big difference

• Check water bottles every morning — dry indoor heat makes them run out faster
• Add an extra fleece layer, but wash bedding often since windows stay closed
• Offer a few extra calories (fresh veggies, seeds, protein treats) on very cold days
• Watch for warning signs: lethargy, puffed-up feathers, or a pet that won't leave its nest

Winter cage checklist

• Cage on an interior wall, away from windows, doors and vents
• Deep bedding for hamsters and burrowers
• Hammocks, sleep sacks and hideouts for ferrets and small mammals
• Night cover and steady light routine for birds
• Daily water and health check

FAQ: Keeping small pets warm in winter

What temperature is too cold for a hamster?

Try to keep the room between about 65 and 75°F. Below roughly 60°F, hamsters can become sluggish, so move the cage somewhere warmer and add extra bedding.

How can I keep my pet bird warm at night?

Place the cage away from windows and drafts, cover it at night with a breathable cage cover, and keep the room temperature steady.

Do ferrets get cold in winter?

Ferrets tolerate cool rooms better than heat, but they still need cozy sleeping spots. Hammocks and fleece sleep sacks give them warm places to curl up.

Should I put a heater near my pet's cage?

It's safer to warm the room than the cage. Space heaters too close can overheat small pets or create fire risks, so keep the cage in a naturally warm, draft-free spot instead.

Shop the look

Warm, safe and cozy — that is how winter should feel for the smallest members of the family.