DIY Polysomnography

[Nitrous]

Unfortunately, the word ‘cheap’ and polysomnography do not fit well together.  There are some open source versions that are reasonable but still, not cheap.  Ever hear the expression that anyone who has themselves for a lawyer is poorly represented.  Same with things medical.  Reading eeg data and interpreting the data are as much art as science.  Your idea sounds good at first blush but I don’t honestly think it will be money well spent.