Bit too firm

I really wish I had requested the softer version of the mattress. it is too firm and I wake up often with arm asleep, should pain etc. However I contacted nest bedding and they send me 2 different toppers to try and help so the service was great. I just feel like now , we have a new mattress and I'm wondering when we can change already. The quality seems great, no chemical smell either. just too firm for me.