You should replace your flannel sheets when you notice that they start to pill. The little balls of fibre that gather on the surface of the flannel after several washes can feel uncomfortable against your skin. It’s a good idea to replace your flannel sheets after 3 years or so even if they aren’t pilling, because flannel weave can get thinner and threadbare over time.

Flannel is surprisingly breathable, so they won’t get too hot during the summer months. However, you should be aware that heavy-weight flannels might not be ideal for warmer climates. If you want flannel sheets that will keep you cool throughout the night, you should choose a lightweight flannel that is soft and breathable.

Most flannel sheet sets will come with care instructions. it’s important to follow those care instructions to avoid damaging your flannel sheets. Failing to follow proper care instructions can reduce the lifespan of your sheets and lead to thinning, pilling, and other types of damage. Make sure to rotate your flannel sheets out often, even if you wash them between uses.