Update: Sold out online, check stock in stores
Spotlight's Koo weighted blanket is back in stock, and even cheaper than before. Great for people with sensory issues and/or anxiety.
The recommended weighted blankets should be 10% of your body weight:
Single is ideal for 20-35kg body weight
Double is ideal for 35-60kg body weight
Queen is ideal for 60-80kg body weight
King is ideal for 80-110kg body weight
Edit: If you make an account, SPAUPDATE saves you $10 off a $50 spend (thanks zvyx)
Are they only suitable for cold weather?