I'm so embarrassed

This is one we've used.

Mattress Stain Remover 300ml www.amazon.co.uk/dp/B007A1UHF0/ref=cm_sw_r_sms_awd_d_zj7zxbNF3X7XF

There are some very good biological mattress stain removers as well. You just spray on, leave, and it digests the stain. Available on Amazon. Hope all goes well with test and results.

I think you could try mixing white vinegar with water and keep spraying and dabbing with an old clean towel till its gone the vinegar smell will go as it dries .
Good luck today .

Oh how annoying! As if going through all the colonoscopy prep isn't bad enough . Hope you get your mattress sorted. But more important, I hope the colonoscopy goes well for you .

Good luck with the colonoscopy. I always say the worst bit about it is the bowel-emptying gunk. You have done that now, so the worst is over. Well done.

Poor you, hope the test goes well today. I have a poorly cat at the moment, who can't get outside quick enough, I am using pet are stain remover, just spray it on, it works very well on my pale grey carpets, says on bottle works on mattresses as well.

Do you know anyone that has a Vax type wet cleaner, they have a small attachment for cleaning furniture etc. The key thing is that they soak the area with cleaner them suck the water back up, taking the dirt with it.