Gray Heron offers both All-Season and Summer Weight versions of our exceptional muslin blankets . Across our line, from adult king blankets to baby blankets, you can opt for a lighter weight (also known as a 4 layer or Summer-Weight) version or a more substantial (8 layer or All-Season) blanket. The Summer-Weight is a lighter version of our signature product.  It is perfect for those who run hot or just want an layer beyond a sheet.  When you don't have the option for air conditioning, this breathable cloud of a blanket will do the trick.The All-Season is really our signature product. Its versatility makes it stand out as a year round slice of heaven. We recommend using the All-Season alone during the warmer months, as it provides enough warmth along with incredible breathability, to cut down on sweating or overheating under the covers. In cooler weather, it makes a more substantial bottom layer under a duvet.