Epilepsy mattress

My 13 year old son Teighjay has autism, add, and learning disabilities, after some very scary seizures just before Christmas and again last month he's been diagnosed with epilepsy. We are hoping this makes his communication with us easier when he's not well . We are fundraising for a mattress that will alert us when he has a seizure in his room. Trying to maintain a level of independence for him instead of me watching him 24/7. Thank you so much for your support at this time, it's appreciated.