Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (19.67 USD): Cuponation9
Coupon (20.32 USD): BG00c906
(CouponsFromChina.com tip: coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGa8f376, 13f142, BG10OFFAFF1, BG4d9120, BGc5fbcf, BGAlerabatod, 00c906, BGe46870, BGb9b36d, BG7280ff, BG1efeb0, BG36e006, BGeb3f38, BG2bb7a1, BG5d2ea4, BG369949, BG073996
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Price history (for all/most countries) for IPRee Portable Nylon Hammock is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).