Here's an interesting article about a 200,000 year old bed !
phys.org
The occupants of South Africa's Border Cave made beds out of grasses, which is an amazing discovery in and of itself,
They also used camphor bush (Tarchonanthus) to deter insects which is not surprising, but is interesting to know that this was being done so long ago ...
but what I thought was really interesting is that they used ash from the fire deter insects too. Apparently that technique is still in use in parts of Africa, but I don't remember specifically hearing about it before

200,000 years ago, humans preferred to sleep in beds
Researchers in South Africa's Border Cave, a well-known archeological site perched on a cliff between eSwatini (Swaziland) and KwaZulu-Natal in South Africa, have found evidence that people have been using grass bedding to create comfortable areas for sleeping and working on at least 200,000...
The occupants of South Africa's Border Cave made beds out of grasses, which is an amazing discovery in and of itself,
They also used camphor bush (Tarchonanthus) to deter insects which is not surprising, but is interesting to know that this was being done so long ago ...
but what I thought was really interesting is that they used ash from the fire deter insects too. Apparently that technique is still in use in parts of Africa, but I don't remember specifically hearing about it before
Several cultures have used ash as an insect repellent because insects cannot easily move through fine powder. Ash blocks insects' breathing and biting apparatus, and eventually dehydrates them.