Heather Elphick helped launch a pilot scheme involving 40 families at Sheffield Children’s Hospital’s sleep clinic—in combination with NHS England and the local council—aimed at improving children’s sleep patterns, reports the BBC.

At the clinic, the process begins with a long, detailed medical history – going right back to the birth – as well as a look at the child’s sleeping environment.

For the twins, this was an important factor in understanding where the issues may derive.

“They’ve suffered with chronic recurrent illnesses and repeated hospital admissions,” Jacqui says, “so their first few years have been pretty tough.”