Because the surface you sleep on matters as much as what you sleep under. A cold, flat mattress pulls warmth away from your body regardless of how thick your duvet is. An underblanket creates a warm, breathable layer directly beneath you, so heat stays where it belongs and moisture is wicked away rather than building up against your back.

Yes — this is one of the most practical benefits. Placed between your mattress and fitted sheet, the underblanket acts as a protective layer that absorbs moisture, body oils, and general wear that would otherwise reach the mattress directly. It extends the lifespan of your mattress significantly, and because it's easier to clean and replace than a mattress itself, it's one of the simplest ways to keep your bed hygienic over time.

A mattress topper is primarily about cushioning and pressure relief — adding softness and support to your mattress. An underblanket is primarily about warmth, protection and moisture regulation — adding a thermal layer beneath you. They solve different problems, and many sleepers use both together for a complete sleep system.

Both use the same Texeler wool fill, so the temperature regulation and moisture-wicking are identical. The difference is the surface: the fleece finish has a soft, plush pile for a cosy, textured feel, while the velour finish is a smooth, fine woven fabric with a subtle softness — sleeker and less textured under the sheet. It comes down to personal preference.

No — this is where wool's temperature regulation comes in. Unlike synthetic mattress pads that trap heat, wool fibres release excess warmth and wick moisture away when temperatures rise. You get the insulation benefit in cold months and breathable comfort in warm ones, which is why underblankets work as a year-round addition rather than a winter-only one.