https://pubmed.ncbi.nlm.nih.gov/?term=((sleep+disorders[mh]+OR+sleep+initiation+and+maintenance+disorders[mh])+AND+(advance+care+planning[mh]+OR+attitude+to+death[mh]+OR+bereavement[mh]+OR+terminal+care[mh]+OR+hospices[mh]+OR+life+support+care[mh]+OR+palliative+care[mh]+OR+terminally+ill[mh]+OR+death[mh%3Anoexp]+OR+palliat*[tw]+OR+hospice*[tw]+OR+terminal+care[tw]+OR+1049-9091[is]+OR+1472-684X[is]+OR+1357-6321[is]+OR+1536-0539[is]+OR+0825-8597[is]+OR+1557-7740[is]+OR+1552-4264[is]+OR+1478-9523[is]+OR+1477-030X[is]+OR+0749-1565[is]+OR+0742-969X[is]+OR+1544-6794[is]+OR+0941-4355[is]+OR+1873-6513[is]+OR+0145-7624[is]+OR+1091-7683[is]+OR+0030-2228[is]))+OR+((sleep*[tw]+OR+insomnia*[tw])+AND+(advance+care+plan*[tw]+OR+attitude+to+death[tw]+OR+bereavement[tw]+OR+life+supportive+care[tw]+OR+terminally+ill[tw]+OR+palliat*[tw]+OR+hospice*[tw]+OR+terminal+care[tw]+OR+1049-9091[is]+OR+1472-684X[is]+OR+1357-6321[is]+OR+1536-0539[is]+OR+0825-8597[is]+OR+1557-7740[is]+OR+1552-4264[is]+OR+1478-9523[is]+OR+1477-030X[is]+OR+0749-1565[is]+OR+0742-969X[is]+OR+1544-6794[is]+OR+0941-4355[is]+OR+1873-6513[is]+OR+0145-7624[is]+OR+1091-7683[is]+OR+0030-2228[is])+NOT+Medline[sb])+AND+English[la]+AND+free+full+text[sb]