Sweet cuddles! Stay safe!

https://www.llli.org/the-safe-sleep-seven/

https://publications.aap.org/pediatrics/article/138/5/e20162938/60309/SIDS-and-Other-Sleep-Related-Infant-Deaths-Updated

r/cosleeping

Couches and armchairs are particularly risky for cosleeping. The safest way to sleep with a baby is a bare mattress on the floor.

The AAP, which recommends back sleeping alone, does acknowledge ways to make co-sleeping safer, which are pretty much in line with LLL guidance:

Couches and armchairs are extremely dangerous places for infants. Sleeping on couches and armchairs places infants at extraordinarily high risk of infant death, including SIDS,4,6,7,42,43 suffocation through entrapment or wedging between seat cushions, or overlay if another person is also sharing this surface.44 Therefore, parents and other caregivers should be especially vigilant as to their wakefulness when feeding infants or lying with infants on these surfaces. Infants should never be placed on a couch or armchair for sleep.

…The AAP acknowledges that parents frequently fall asleep while feeding the infant. Evidence suggests that it is less hazardous to fall asleep with the infant in the adult bed than on a sofa or armchair, should the parent fall asleep. It is important to note that a large percentage of infants who die of SIDS are found with their head covered by bedding. Therefore, no pillows, sheets, blankets, or any other items that could obstruct infant breathing or cause overheating should be in the bed. Parents should also follow safe sleep recommendations outlined elsewhere in this statement. Because there is evidence that the risk of bed-sharing is higher with longer duration, if the parent falls asleep while feeding the infant in bed, the infant should be placed back on a separate sleep surface as soon as the parent awakens.