210x75cm Camping Sleeping Bag [EU] (Banggood, Aliexpress: External material 170T polyester taffeta fabric, Filling Hollow cotton 200g/m2, Color Blue/Green/Red/Navy Blue, Weight 700g, Lining 170T polyester, Size L 210CMx W 75CM/ 83 inchx 29.5 inch, Packaging Special compact bag with adjustable strap, Temperature range 5℃-20℃/(41℉- 68 ℉) (the best price with coupon)).
Just check coupons out (with price alert and history). What is best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. I don’t really know if this price is reasonable, coz there’s no price history in my DB.
Link: Banggood product page
1. ($34.03): MVC8SPRING
2. ($34.03): 8BGwbg2204
3. ($34.77): BG00c906
4. ($34.77): BG36e006
this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BG10OFFAFF1, BG4d9120, BGAlerabatod, BGAlerabatdo, BG3ed3f3, 00c906, BGe46870, BG7280ff
(probably won’t work, but you can try them out)
Price history and price alert
There is only one database record (it was for $24.99), so you can’t see price history chart.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).