Cocoon Sleeping Bag Liners

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{ "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What does a sleeping bag liner do?", "acceptedAnswer": { "@type": "Answer", "text": "A sleeping bag liner serves three main purposes: it adds warmth to your existing sleeping bag, acts as a hygiene barrier between you and the bag (or hut blankets), and helps extend the life of your sleeping bag by keeping it cleaner between washes. In practice, a liner means you can wash the liner frequently — which is easy — and wash the sleeping bag far less often, which is better for the down or synthetic fill. They're also useful on their own in warm conditions or lightweight summer trips where a full sleeping bag is overkill." } }, { "@type": "Question", "name": "How much warmth does a sleeping bag liner add?", "acceptedAnswer": { "@type": "Answer", "text": "The warmth a liner adds depends on the material. A silk liner typically adds around 3–5°C to your sleeping bag's temperature rating. A cotton liner adds a similar amount but feels heavier and takes longer to dry. Synthetic thermal liners can add 5–8°C or more, making them genuinely useful for extending a three-season bag into cooler conditions. Cocoon, the brand we stock, provides warmth rating information for each liner — check individual product pages for specific figures. Keep in mind that warmth ratings are approximate and vary with conditions, sleeping pad insulation, and how warm a sleeper you are." } }, { "@type": "Question", "name": "Silk vs cotton vs synthetic liner — which is best?", "acceptedAnswer": { "@type": "Answer", "text": "Silk liners are the premium choice for tramping: lightweight, packing down to almost nothing, fast-drying, and comfortable against the skin. The Peak XV Silk Liner is our lead recommendation — it's the ideal balance of performance and value for NZ tramping. Cotton liners are more affordable but heavier, bulkier, and slow to dry — not well suited to NZ's wet conditions. Synthetic liners