Hi Resi,
Thanks for reply!
I talked to the creator of the bed, unfortunately the problem is how he created the animations. He used Avastar 1 instead of 2 and it causes joint offset avatars to have weird deformations mostly to the legs. He said he tried to fix it but was unable to do so as it created other problems degrading the quality of the original poses. He had to leave it as it was. =/