Most shoppers understand that wool translates to great warmth, but it is also a material that can be very cool and lightweight as well. This is especially the case when blankets are the subject. You can easily find under blankets made of lightly woven wool or you can find full blankets or quilts that rely on wool to ensure the greatest comfort possible. Like many types of bedding, you will want to consider weights or thread counts where woollens are concerned.