Can you even do a truffle session if you've just eaten spacecacke?
Combining cannabis (as in spacecake) and psilocybin (as in truffles) is generally not recommended due to its unpredictable and potentially amplified effects. Spacecake can begin to take effect up to 1.5 hours after consumption, with effects lasting from 5 to 12 hours. Combining both substances can lead to a more intense and potentially overwhelming experience. An example is a dinner where cannabis and truffles were combined; many participants experienced strong effects and some had to leave the dinner early. For a safe and controlled experience, it is advisable not to combine these substances and leave sufficient time between use.
If you want to combine truffles and spacecake at all, do it when you're almost sober again. Then the trip can pick up a bit without getting too intense.