How to make a bed

Step 1: Make a sawmill.
10 Wood + 2 Iron Bars + a Chain = Sawmill (crafted at work bench)

Step 2: Make a loom.
12 Wood = Loom (crafted at sawmill)

Step 3: Make silk.
7 Cobwebs = 1 Silk (crafted at loom)

Step 4: Make a bed.
15 Wood + 5 Silk = Bed (crafted at sawmill)