A good night's sleep is what makes camping enjoyable the next day, and that comes down to your sleep system. The right sleeping bag, matched to the conditions and backed up by insulation underneath you, keeps you warm, comfortable, and ready for whatever the trip has planned. Get it wrong and a cold night can spoil an otherwise great adventure.

Our sleep systems range covers sleeping bags in both down and synthetic fills, across a spread of temperature ratings, along with blankets and comfort focused options for everything from festivals to backpacking. We stock trusted outdoor brands and a range of budgets, so you can find a sleep setup that suits your trips and the British weather.

Not sure which temperature rating or fill you need? The guide below explains it, and our team is always happy to help. Browse the range below, and complete your camp with a tent from our tents and shelters and the rest of our camping equipment.

What Is a Sleep System?

A sleep system is more than just a sleeping bag. It is the combination of your bag, the insulation beneath you, and sometimes a liner, working together to keep you warm. A surprising amount of heat is lost into the ground, so a sleeping bag alone on cold ground will never feel as warm as the same bag used with a good sleeping mat. Thinking of it as a system, rather than a single item, is the key to staying warm.

Understanding Temperature Ratings

Sleeping bags are given temperature ratings, often as a figure such as 20°F or a comfort and limit range in Celsius. The comfort rating is the temperature at which a typical person can sleep comfortably, which is the most useful number for most campers. It is wise to choose a bag rated a little warmer than the coldest night you expect, as you can always vent a bag that is too warm but cannot add warmth that is not there. People also sleep differently, so those who feel the cold should err towards a warmer rating.

Down or Synthetic Fill?

The fill is the heart of a sleeping bag, and the choice is between down and synthetic.

• Down fill: the best warmth for weight, highly compressible, and long lasting, though it loses insulation if it gets wet and costs more
• Synthetic fill: keeps much of its warmth when damp, dries faster, and costs less, at the expense of being bulkier and heavier for the same warmth

For damp UK conditions and general camping, synthetic is a dependable, affordable choice; for lightweight backpacking where packed size matters, down is hard to beat.

Sleeping Bag Shapes

Shape affects both warmth and comfort.

• Mummy bags: tapered and close fitting for maximum warmth and low weight, ideal for backpacking
• Rectangular bags: roomier and more comfortable for campsite use, easy to open out like a duvet
• Doublewide bags: room for two, great for couples and family camping

A snugger bag traps warmth more efficiently, while a roomier bag trades some warmth for comfort and space.

How to Choose Your Sleep System

Start with the coldest conditions you expect and choose a comfort rating a little below that. Decide between down and synthetic based on how much you care about weight and packed size versus wet weather performance and budget. Match the shape to your use, and pair the bag with a sleeping mat to insulate you from the ground. Blankets and liners add versatility and a little extra warmth. Our team can help you balance warmth, weight, and budget for the trips you have in mind.

Caring for Your Sleeping Bag

Good care keeps a bag warm and lofty for years.

• Store it loosely in a large storage sack, never compressed long term, to protect the loft
• Air it out after trips and make sure it is fully dry before storing
• Use a liner to keep the inside clean and reduce washing
• Wash only when needed, following the care label, using the correct down or synthetic cleaner
• Avoid tumble drying on high heat, which can damage the fill

Storing a bag loosely rather than crammed in its stuff sack is the simplest way to protect its warmth over time.

How Much Do Sleeping Bags Cost?

Prices depend on fill type, warmth, weight, and brand. Entry level synthetic bags cover summer and festival use at the lower end of the range, mid range bags offer three season warmth and better materials, and premium down bags bring the best warmth for weight and packed size. If you camp in cold or variable UK conditions, investing in the right warmth rating and a good sleeping mat makes the biggest difference to your comfort.

Why Buy Your Sleep System from Surface2Air Sports?

We have been fitting outdoor and watersports enthusiasts since 2002, with a shop in Poole and the full range online.

• Down and synthetic sleeping bags across a range of temperature ratings
• Mummy, rectangular, and doublewide shapes
• Blankets and comfort focused options
• Honest advice on ratings, fill, and pairing with a mat
• In store support and online guidance
• A range to suit different budgets

Whether you are after a light bag for the hills or a cosy setup for family weekends, we can help you sleep warm. Pair it with the right shelter from our outdoor range.

Frequently Asked Questions About Sleep Systems

What temperature rating sleeping bag do I need?

Choose a comfort rating a little below the coldest night you expect. You can vent a warm bag, but you cannot add warmth that is not there, so err on the warmer side.

Is down or synthetic better?

Down gives the best warmth for weight and packs smallest but struggles when wet, while synthetic keeps more warmth when damp, dries faster, and costs less. Choose based on your trips.

Why do I need a sleeping mat as well?

A lot of body heat is lost into the ground. A sleeping mat insulates you from below, so a bag used with a mat is far warmer than a bag alone on cold ground.

What is the difference between comfort and limit ratings?

The comfort rating is where a typical person sleeps comfortably, while the limit rating is the lower edge of usability. The comfort figure is the most useful for most campers.

How should I store a sleeping bag?

Store it loosely in a large storage sack, never compressed long term, so the fill keeps its loft. Compressing it only for transport.

Can I wash my sleeping bag?

Yes, but only when needed and following the care label, using the correct down or synthetic cleaner. Avoid high heat tumble drying, which can damage the fill.

What shape bag should I choose?

Mummy bags are warmest and lightest for backpacking, rectangular bags are roomier for campsites, and doublewide bags suit couples and families.

How do I make my bag warmer on a cold night?

Add a liner, wear dry base layers, use a warmer sleeping mat, and eat and hydrate well before bed. A liner can add a few degrees of comfort.