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Annie Lam, Ph.D.


Dr. Annie Lam earned her doctorate in counseling psychology at Lehigh University. She completed her pre-doctoral internship at CMTP, Boston Medical Center and her post-doctoral fellowship at New York University. She specializes in helping adults manage their anxiety and depression related sleeping difficulties.

Fun Sleep Facts About Dr. Lam:

Optimal sleep: 11:30 PM – 7:00 AM
Peak alertness: 9:00 AM – 6:00 PM
Favorite sleep tip: Maintaining a consistent sleep schedule

Brittney Jones, PsyD


Dr. Brittney Jones earned a Doctor of Psychology degree in Clinical Psychology from Mercer University in Atlanta, GA. Before fulfilling her doctorate, she obtained two master’s degrees in clinical health psychology and clinical mental health counseling from Mercer University. 

Dr. Jones attended Harvard Medical School at Cambridge Health Alliance where she completed her psychology residency in Cambridge, MA. Following her residency, she was accepted into Stanford University School of Medicine’s postdoctoral fellowship in Palo Alto, CA where she is currently a fellow. 

Dr. Jones has extensive clinical experiences with children, teens, and adults. She specializes in pain, chronic illness, trauma, and mood and anxiety disorders. At DrLullaby, Dr. Jones compassionately helps to optimize sleep, tailoring research-backed strategies to each person’s sleep needs. 

Fun Sleep Facts About Dr. Jones:

Optimal sleep: 9:00 PM -6:00 
Peak alertness: 9:00 AM – 12:00 PM
Favorite sleep tip: Did you know the way you think about sleep can affect sleep quality? When you notice anxiety, worry, or hopelessness about sleep, this is a cue that there may be unhelpful thoughts that may interfere with sleep. Here at DrLullaby, we help to optimize and decrease stress related to sleep!

Sarah Zwetzig, PhD, LP


Dr. Zwetzig completed her PhD in Counseling Psychology from University of Northern Colorado and matched to University of Texas Health Science Center at San Antonio for her predoctoral internship. During internship, she worked as a research therapist for STRONG STAR, a national research organization guiding studies in trauma and resilience in the military. Dr. Zwetig gained expertise in evidence-based therapy for PTSD, and continued on with UT Health San Antonio for her 2-year postdoctoral fellowship. Dr. Zwetig’s postdoctoral fellowship was focused on treating insomnia and nightmares and active duty service members, many of which had comorbidities such as PTSD, depression, and anxiety. She specializes in treating insomnia and nightmares in adults.

Fun Sleep Facts About Dr. Zwetzig:

Optimal sleep: 10:30 PM – 7:00 AM
Peak alertness: 9:00 AM – 1:30 PM
Favorite sleep tip: Wear blue light glasses in the evening, especially if you’re using screens! Have several pairs in different rooms.

Christine Mason, Ph.D., DBSM


Dr. Mason is a Sleep Psychologist board certified in Behavioral Sleep Medicine. She received her Ph.D. in Health Psychology from the University of North Carolina at Charlotte, completed an internship in Clinical Health Psychology from Henry Ford Health System in Detroit, Michigan, and concluded her training with a postdoctoral fellowship in Health and Bariatric Psychology at Rush University Medical Center in Chicago, Illinois. 

She has three years of specialized clinical and research training in sleep disorders under the supervision of experts at Rush University Medical Center, Northwestern University Feinberg School of Medicine, and Henry Ford Health System. Specific areas of interest and expertise include sleep and circadian rhythm disorders in adults, comorbid sleep, anxiety and depressive disorders in patients with heart disease, nonpharmacological interventions for obesity/weight management, and medication/treatment adherence.

Fun Sleep Facts About Dr. Mason:

Optimal sleep: 10:45 PM – 7:00 AM
Peak alertness: 7:30 AM – 11:30 AM
Favorite sleep tip: Wake up, get out of bed, and expose your eyes to light. Try to do this at the same time each day, and feel the benefits of this practice on your level of sleepiness at night.

Lisa Medalie, PsyD, RPSGT, DBSM


Hi, I’m Dr. Medalie, AKA DrLullaby. Since so few of us are board-certified as Insomnia Specialists, yet so many people struggle to sleep, I brought the work I use with patients to your finger-tips.


  • Board-Certified Adult and Pediatric Behavioral Sleep Medicine Specialist
  • Harvard Medical School, Sleep Research Postdoctoral Fellowship
  • Johns Hopkins School of Medicine, Predoctoral Internship
  • University of California San Diego, Sleep Clinical Postdoctoral Fellowship
  • Doctorate in Clinical Neuropsychology, American School of Professional Psychology
  • 10 Years Directing Insomnia Program at University of Chicago
  • Author of Putting Sleep Problems to Bed

Fun Sleep Facts About Dr. Medalie
Optimal sleep: 11:00 PM – 8:00 AM
Peak alertness: 10:00 AM – 2:00 PM
Favorite sleep tip: Alarm training: Pick a new alarm sound and do practice sessions 2/day where you practice rapidly rising from bed to the new sound.